<?php
    if (!defined('DATE_W3C')) {
        define('DATE_W3C', 'Y-m-d\TH:i:sP');
    }
    if (!defined('DEBUGMODE_ENABLED')) {
        define('DEBUGMODE_ENABLED', false);
    }

    /**
     * PHPExcel_Shared_XMLWriter
     * Copyright (c) 2006 - 2015 PHPExcel
     * This library is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 2.1 of the License, or (at your option) any later version.
     * This library is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     * Lesser General Public License for more details.
     * You should have received a copy of the GNU Lesser General Public
     * License along with this library; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
     * @category   PHPExcel
     * @package    PHPExcel_Shared
     * @copyright  Copyright (c) 2006 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel)
     * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt    LGPL
     * @version    ##VERSION##, ##DATE##
     */
    class PHPExcel_Shared_XMLWriter extends XMLWriter {
        /** Temporary storage method */
        const STORAGE_MEMORY = 1;
        const STORAGE_DISK   = 2;
        /**
         * Temporary filename
         * @var string
         */
        private $tempFileName = '';

        /**
         * Create a new PHPExcel_Shared_XMLWriter instance
         * @param int    $pTemporaryStorage       Temporary storage location
         * @param string $pTemporaryStorageFolder Temporary storage folder
         */
        public function __construct($pTemporaryStorage = self::STORAGE_MEMORY, $pTemporaryStorageFolder = null) {
            // Open temporary storage
            if ($pTemporaryStorage == self::STORAGE_MEMORY) {
                $this->openMemory();
            } else {
                // Create temporary filename
                if ($pTemporaryStorageFolder === null) {
                    $pTemporaryStorageFolder = PHPExcel_Shared_File::sys_get_temp_dir();
                }
                $this->tempFileName = @tempnam($pTemporaryStorageFolder, 'xml');
                // Open storage
                if ($this->openUri($this->tempFileName) === false) {
                    // Fallback to memory...
                    $this->openMemory();
                }
            }
            // Set default values
            if (DEBUGMODE_ENABLED) {
                $this->setIndent(true);
            }
        }

        /**
         * Destructor
         */
        public function __destruct() {
            // Unlink temporary files
            if ($this->tempFileName != '') {
                @unlink($this->tempFileName);
            }
        }

        /**
         * Get written data
         * @return $data
         */
        public function getData() {
            if ($this->tempFileName == '') {
                return $this->outputMemory(true);
            } else {
                $this->flush();
                return file_get_contents($this->tempFileName);
            }
        }

        /**
         * Fallback method for writeRaw, introduced in PHP 5.2
         * @param string $text
         * @return string
         */
        public function writeRawData($text) {
            if (is_array($text)) {
                $text = implode("\n", $text);
            }
            if (method_exists($this, 'writeRaw')) {
                return $this->writeRaw(htmlspecialchars($text));
            }
            return $this->text($text);
        }
    }
